目次

• Web console
• mackerel-agent
• Integration with various cloud platforms
• Plugins, Other OSS products
• Alerts, Notifications

Web console

• Graphs aren't being displayed in Mackerel and it seems like data isn't being posted.
• Changes cannot be made to monitors and such from the Web console
• Why don’t the number of metrics match those displayed at the bottom of graphs in the host details?
• I can't log in because the device I was using for two-step verification was damaged/lost.

mackerel-agent

• The agent won’t startup.
• The agent is outputting the error "x509: certificate signed by unknown authority"
• Mackerel doesn't recognize duplicate servers from agent installed templates ／ machine images etc.
• I’ve set up mackerel-container-agent in an Amazon ECS environment, but the host won’t integrate with Mackerel
• I’ve set up mackerel-container-agent in a Kubernetes environment, but the host won’t integrate with Mackerel

Integration with various cloud platforms

• I configured AWS Integration, but the host won’t integrate with Mackerel
• I've set up Google Cloud (GCP) Integration, but the host won't integrate with Mackerel
• I’ve set up Azure Integration, but the host won’t integrate with Mackerel
• I’m using integration, but the host remains without retiring

Plugins, Other OSS products

• An unexpected error message occurs with Windows event log monitoring.
• Why can’t I get metrics with the mackerel-plugin-apache2 plugin?
• I can’t get metrics with the plugin mackerel-plugin-snmp
• I’m getting the alert "UNKNOWN: unexpected end of JSON input" for a host using the check-log plugin

Alerts, Notifications

• I set up monitoring rules but I’m still not getting alert notifications.
• Connectivity monitoring alert occurred even though the monitoring server was running
• External monitoring error "x509: certificate signed by unknown authority"
• I’m not receiving any emails.